tinny vs crummy

tinny and crummy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tinny	No	Yes	No	No
crummy	No	Yes	No	No

As adjectives, tinny and crummy are synonyms defined as:

Other synonyms of tinny include bum, cheap, cheesy, chintzy, punk, sleazy.

tinny (adjective)	crummy (adjective)
of or containing tin	of very poor quality; flimsy
of very poor quality; flimsy
thin and metallic in sound; lacking resonance